Since the bug report thread was locked, I’m posting some answers here from there that I had wanted to respond to.
It would completely gut me if that happened. This character I’m posting on is the very first character I created on my one – and still only – account back in Nov 2004, and have mained ever since. That would be, for me, over 621 days lost. And if my alts were taken into account, the total /played would be just shy of 1K days.
There well and truly would be no coming back from that.
My Horde rogue alt – who was and still is the only one that got any mail – has not received any more restoration mail beyond what little was sent out on last Friday.
Both. All my personal guild banks are single-faction & single-realm (even when Connected Realms was a thing), while my raiding guild is both-factions & multiple-realms.